mangodrum is a very simple to use percussion composer program for Windows which uses an easy to understand grid format for displaying the rhythm patterns.
Aries Video Converter GOLD is a powerful tool that can convert among many kinds of video formats, including AVI, MP4, 3GP, 3G2, WMV, WMA, MOV, MP3, MPG, etc.
ACDR (Audio Compact Disc Reader) is a tool that lets you read audio tracks from standard audio CD's and write them to a variety of different file formats.